In-wall electronic timer



FIG. 1 is a perspective view of an in-wall electronic timer showing our new design;

FIG. 2 is a side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is an opposite side view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing of a plate and rear housing is for environmental purposes only and forms no part of the claimed design. 

The ornamental design for an in-wall electronic timer, as shown. 